Slow-roll inflation in scalar-tensor theories

Details Slow-roll inflation in scalar-tensor theories Slow-roll inflation in scalar-tensor theories

Mar 1995

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995phrvd..51.2729b&link_type=abstract

Physical Review D (Particles, Fields, Gravitation, and Cosmology), Volume 51, Issue 6, 15 March 1995, pp.2729-2732

Mathematics

Logic

23

Particle-Theory And Field-Theory Models Of The Early Universe, Gravity In More Than Four Dimensions, Kaluza-Klein Theory, Unified Field Theories, Alternative Theories Of Gravity, Unified Field Theories And Models

Scientific paper

The slow-roll approximation is specified for cosmological models in scalar-tensor gravity theories. Specific isotropic cosmological models with zero curvature are found for the class of theories in which the gravitational coupling function ω(cphi) is a power-law function of the gravitational scalar field cphi when the Universe contains other scalar fields with constant, power-law, and exponential potentials, respectively. Some new types of inflation are found, but intermediate inflationary behavior is displayed by a wide class of models.

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